CVE-2025-59159

{
  "id": "CVE-2025-59159",
  "sourceIdentifier": "[email protected]",
  "published": "2025-10-06T16:15:34.377",
  "lastModified": "2026-10-19T16:10:00.260",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "SillyTavern is a locally installed user interface that allows users to interact with text generation large language models, image generation engines, and text-to-speech voice models. In versions prior to 1.13.4, the web user interface for SillyTavern is susceptible to DNS rebinding, allowing attackers to perform actions like install malicious extensions, read chats, inject arbitrary HTML for phishing attacks, etc. The vulnerability has been patched in the version 1.13.4 by introducing a server configuration setting that enables a validation of host names in inbound HTTP requests according to the provided list of allowed hosts: `hostWhitelist.enabled` in config.yaml file or `SILLYTAVERN_HOSTWHITELIST_ENABLED` environment variable. While the setting is disabled by default to honor a wide variety of existing user configurations and maintain backwards compatibility, existing and new users are encouraged to review their server configurations and apply necessary changes to their setup, especially if hosting over the local network while not using SSL."
    },
    {
      "lang": "es",
      "value": "SillyTavern es una interfaz de usuario instalada localmente que permite a los usuarios interactuar con grandes modelos de lenguaje de generación de texto, motores de generación de imágenes y modelos de voz de texto a voz. En versiones anteriores a la 1.13.4, la interfaz de usuario web de SillyTavern es susceptible a DNS rebinding, permitiendo a los atacantes realizar acciones como instalar extensiones maliciosas, leer chats, inyectar HTML arbitrario para ataques de phishing, etc. La vulnerabilidad ha sido parcheada en la versión 1.13.4 mediante la introducción de una configuración de servidor que habilita una validación de nombres de host en solicitudes HTTP entrantes según la lista proporcionada de hosts permitidos: 'hostWhitelist.enabled' en el archivo config.yaml o la variable de entorno 'SILLYTAVERN_HOSTWHITELIST_ENABLED'. Aunque la configuración está deshabilitada por defecto para respetar una amplia variedad de configuraciones de usuario existentes y mantener la compatibilidad con versiones anteriores, se recomienda a los usuarios existentes y nuevos que revisen sus configuraciones de servidor y apliquen los cambios necesarios a su configuración, especialmente si se aloja a través de la red local sin usar SSL."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "SillyTavern",
          "product": "SillyTavern",
          "versions": [
            {
              "version": "< 1.13.4",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
          "baseScore": 9.6,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 6.0
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2025-10-06T15:54:29.254980Z",
          "id": "CVE-2025-59159",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-346"
        },
        {
          "lang": "en",
          "value": "CWE-940"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://docs.sillytavern.app/administration/#security-checklist",
      "source": "[email protected]"
    },
    {
      "url": "https://docs.sillytavern.app/administration/config-yaml/#host-whitelisting",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/SillyTavern/SillyTavern/commit/d134abd50e4a416e3b81233242583b0a23f38320",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/SillyTavern/SillyTavern/releases/tag/1.13.4",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/SillyTavern/SillyTavern/security/advisories/GHSA-7cxj-w27x-x78q",
      "source": "[email protected]"
    }
  ]
}